Home / 917,228.20-1,373,120.70-681,615.40

Finding the Fourth Proportional to 917,228.20, 1,373,120.70 and 681,615.40

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Solution

The fourth proportional to 917,228.20, 1,373,120.70 and 681,615.40 is: 1,020,400.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,228.20 : 1,373,120.70 = 681,615.40 : x
  2. Step 2: Convert to fraction form
    917,228.20/1,373,120.70 = 681,615.40/x
  3. Step 3: Cross multiply
    917,228.20x = 1,373,120.70 × 681,615.40
  4. Step 4: Simplify right side
    917,228.20x = 935,940,215,178.78
  5. Step 5: Solve for x
    x = 935,940,215,178.78/917,228.20
  6. Step 6: Final answer
    x = 1,020,400.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.